Find the word definition

The Collaborative International Dictionary
Whet slate

Whet \Whet\, n.

  1. The act of whetting.

  2. That which whets or sharpens; esp., an appetizer. ``Sips, drams, and whets.''
    --Spectator.

    Whet slate (Min.), a variety of slate used for sharpening cutting instruments; novaculite; -- called also whetstone slate, and oilstone.

Wiktionary
whet slate

n. (context mineralogy English) A variety of slate used for sharpening cutting instruments; novaculite; oilstone.